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How do you make a 1600MHz RAM stick run at 1600MHz ?

post #1 of 7
Thread Starter 
Hi, I'm currently assembling a new computer (2600K, Asus P8P67) and I'm having some troubles with the RAM (2 kits of 2x4GB G.Skill Rpijaws X 1600MHz CL9) as it's running at 1333MHz instead of 1600MHz.

I updated the BIOS version to 1401 which is I think the latest available to date, and loaded the XMP profile. It switched my RAM frequency to 1600MHz and entered automatically the right timings. But when I rebooted the computer, it wouldn't boot at all. There was this red Led switched on on the motherboard near the Mem OK switch, so something was wrong with the RAM settings. I had to push the Mem OK switch to run the Mobo RAM tests. The computer rebooted and I could finally access the BIOS. But the settings were changed and everything was set to Auto instead of specific values like DDR3-1600MHz, or timings.

I guess I'm missing something here because each time I'm setting the RAM frequency to 1600MHz, the computer won't boot and the Red led on the mobo will be switched on.
Thanks!
post #2 of 7
Sounds like you might need a little more juice (DRAM voltage).
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post #3 of 7
Dont use the xmp profile, use manual oc to boost the ram to the required 1600 and make sure you have voltage on the ram at 1.5 as those particular sticks run on low voltage unlike the 1.65v ram you can get.

play with your fsb and multiplier, I cant give specifics as it will differ from cpu to cpu but dont worry your not having any issues its literally just getting the right settings
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post #4 of 7
Also, sometimes, especially if you overclock, you might have to loosen the timings on the RAM if you want the 1600MHz.
 
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post #5 of 7
Quote:
Originally Posted by Gunderman456 View Post
Also, sometimes, especially if you overclock, you might have to loosen the timings on the RAM if you want the 1600MHz.
I can vouch for the g.skill at the rated specs, then run fine on 1.5v with rated timings now need to slow them down, I have mine running on 1t instead of 2t command rate though but when changing your overclock settings to get to 1600 just leave timing on auto ;-)
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My Beast
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OCZ Vertex 4 256gb Seagate Barracuda 7200.14 2TB ST2000DM001, 1TB ... Pioneer BDR-207EBK Blu-Ray Writer Noctua NH-C14 
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post #6 of 7
The 9-9-9-24 1600 Ripjaws is rated at 1.5 2T

If you want to run it at 1T which is probably what the motherboard defaults to, you need more voltage. Mine required 1.58 to run 1T. I got the same memory bro

Heres what you should do

Forget about stock timings and speed

Try

9-10-9-28 1866 1T

I needed 1.608 volts to make those speeds stable
post #7 of 7
Thread Starter 
Thanks for the suggestions, I'm going to try all that!
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